package com.learn.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * 一些声明信息
 * Description: <br/>
 * date: 2020/10/30 0:47<br/>
 *
 * @author ${李佳乐}<br/>
 * @since JDK 1.8
 */
@Service
public class PaymentService {

    public String paymentInfo_Ok(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "paymentInfo_Ok,id:" + id + "\t" + "成功执行";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000")
    })
    public String paymentInfo_TimeOut(Integer id) {
//        int a = 10/0;
        int timeNumber = 3;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池：" + Thread.currentThread().getName() + "paymentInfo_TimeOut,id:" + id + "\t" + "耗时(秒)：" + timeNumber;

    }

    public String paymentInfo_TimeOutHandler(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "系统繁忙或运行出错，请稍后再试——————id:" + id;
    }
    //***************************************************服务熔断*********************************************************

    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60")
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if(id < 0){
            throw new RuntimeException("*******id 不能为负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "调用成功，流水号：" + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id 不能为负数，请稍后再试；  id:" + id;
    }
}
